All of the Following Are Disadvantages of Using Hydrogen as an Energy

question 9

Multiple Choice

All of the following are disadvantages of using hydrogen as an energy source except:

• A) high volatility
• B) relatively low energy density
• C) hydrolysis is relatively inefficient
• D) electricity must be used to produce it

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Definitions:

Sepals

The outer parts of a flower, typically green and leaf-like, that protect the developing bud.

Receptacle

The end of a flower stalk where the flower parts (sepals, petals, stamens, and carpels) are attached.

Self-pollination

A process in plants where pollen from one flower fertilizes ovules of the same flower or another flower on the same plant.

Self-incompatibility Genes

Genetic mechanisms in plants that prevent inbreeding and promote cross-pollination by inhibiting fertilization by pollen from the same or closely related individuals.